Marine Mollusca of isotope stages of the last 2 million years in New Zealand. Part 4. Gastropoda (Ptenoglossa, Neogastropoda, Heterobranchia)

Abstract

Three new species: Opalia (Pliciscala) flemingi (late Nukumaruan-early Castlecliffian, OIS 7129?, Wanganui); Kuroshioturris putere (Opoitian-Waipipian, Westland and Hawke's Bay), Antimelatoma waimea (Kapitean-Opoitian, Westland); two new genera: Cryptofusus (Turbinellidae) for New Zealand species formerly referred to Pleia Finlay (Australian); Onoketoma (Conidae, Raphitominae) for "Insolentia" solitaria King, bathyal Nukumaruan, Palliser Bay. Xymene (sensu stricto; separated again from Axymene, Xymenella and Zeatrophon) is useful biostratigraphically in near-shore facies: X. drewi (Hutton) (based on Marwick's lectotype), Mangapanian-late Nukumaruan; X. expansus (Hutton), late Nukumaruan-early Castlecliffian (to OIS 19); X. plebeius (Hutton), OIS 17-Recent. New fossil records from Pleistocene (OIS 7) deposits at Hokianga Harbour, Northland: Agnewia tritoniformis (Blainville), Hydatina physis (Linné), Philine tepikia Rudman. Other biostratigraphically useful species: Zeatrophon bonneti (Cossmann) (Nukumaruan-OIS 9; 7?); Aeneator delicatulus Powell, Buccinulum caudatum Powell (both OIS 25-19, 17?). New synonymy: Otahua Marwick, 1948 = Bedeva Iredale, 1936; Cominella (Eucominia) marlboroughensis Powell = C. elegantula (Finlay), NukumaruanRecent; Antiguraleus Powell, 1942 =Propebela Iredale, 1918; Antiguraleus depressipirus (Beu) = Propebela ula (Watson); Oenopota Mörch, 1853 is possibly an earlier name for Liracraea Odhner, 1924, but Liracraea is retained; Antimelatoma ahiparana and A. otagoensis of Powell = A. buchanani (Hutton); Tritonoturris Dall, 1924 = Asperdaphne Hedley, 1922; most Australasian "Asperdaphne" species are assigned to Pleurotomella Verrill. Taxonomy revised: Cirsotrema zelebori (Dunker); Opalia (Nodiscala) nympha (Hutton) (Mangapanian-Nukumaruan); Acirsa cookiana (Dell, 1956) (OIS 23-Recent); Cominella (Eucominia) incisa (Hutton), Nukumaruan, Hawke's Bay; Euthria pangoides (Beu), Waipipian; Iredalula striata (Hutton), Kapitean(?)-Castlecliffian (-OIS 11) distinguished from /. alticincta (Murdoch & Suter), Nukumaruan-Recent; Ponderia zealandica (Hutton) (OIS 13-Recent); Amalda (Baryspira) olsoni Beu, Nukumaruan; Kuroshioturris angustata (Powell), Mangapanian-Recent; Austrotoma aguayoi (Carcelles) (Recent, SW Atlantic); Struthiolariopsis ferrieri (Philippi), Cretaceous, Quinquina, Chile (Conoidea); Mitrellatoma angustata (Hutton), Nukumaruan; Gymnobela gypsata (Watson), Recent, E New Zealand, removed from Paracomitas; Paracomitas protransenna (Marshall & Murdoch) (Nukumaruan), P. gemmea (Murdoch) (Castlecliffian) and P. augusta (Murdoch & Suter) ( = P. augusta powelli Dell; Recent); Aoteadrillia wanganuiensis (Hutton) ( = chordata Suter and many other synonyms; Nukumaruan-Recent), A. finlayi (Powell) and A. apicarinata (Marshall & Murdoch) (Nukumaruan); Bulla quoyii Gray (OIS 7-Recent); Bulla australis Férussac, Atlantic, = B. mobiliei Locard; Philippia lutea (Lamarck), Nukumaruan-Recent. © 2011 The Roval Society of New Zealand.